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National primary drinking water regulation for arsenic: A retrospective assessment of costs

Author

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  • Morgan Cynthia

    (US EPA, National Center for Environmental Economics 1200 Pennsylvania Avenue, Mail Code 1809T Washington, District of Columbia 20460, USA)

  • Simon Nathalie B.

    (U.S. Environmental Protection Agency, National Center for Environmental Economics)

Abstract

This paper compares EPA’s ex ante cost analysis of the 2001 maximum contaminant limit (MCL) for Arsenic in Drinking Water to an ex post assessment of the costs. Because comprehensive cost information for installed treatment technologies or other mitigation strategies pursued by water systems to meet the new standard is not available, this case study relies upon ex post cost data from EPA Demonstration Projects, capturing a total of 50 systems across the US. Information shared by several states and independent associations on the types (but not costs) of treatment technologies used by systems is also summarized. Comparisons of predicted costs to realized costs using our limited data yield mixed results. Plotting the capital cost data from the Demonstration Projects against the cost curves for the compliance technologies recommended for smaller systems, we find that the EPA methodology overestimated capital costs in most cases, especially as the size of the system increases (as measured by the design flow rate).

Suggested Citation

  • Morgan Cynthia & Simon Nathalie B., 2014. "National primary drinking water regulation for arsenic: A retrospective assessment of costs," Journal of Benefit-Cost Analysis, De Gruyter, vol. 5(2), pages 1-26, June.
    • Handle: RePEc:bpj:jbcacn:v:5:y:2014:i:2:p:26:n:1
    DOI: 10.1515/jbca-2014-0021
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    References listed on IDEAS

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    1. Kopits, Elizabeth & McGartland, Al & Morgan, Cynthia & Pasurka, Carl & Shadbegian, Ron & Simon, Nathalie B. & Simpson, David & Wolverton, Ann, 2014. "Retrospective cost analyses of EPA regulations: a case study approach," Journal of Benefit-Cost Analysis, Cambridge University Press, vol. 5(2), pages 173-193, June.
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    Cited by:

    1. Simon, Daniel H. & Zirogiannis, Nikolaos & Hollingsworth, Alex, 2017. "Estimating Co-pollutant Benefits from Climate Change Policies in the Electricity Sector: An Empirical Approach," 2017 Annual Meeting, July 30-August 1, Chicago, Illinois 259116, Agricultural and Applied Economics Association.
    2. Fraas, Arthur G. & Kopits, Elizabeth & Wolverton, Ann, 2021. "A Retrospective Review of Retrospective Cost Analyses," RFF Working Paper Series 21-29, Resources for the Future.

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